Blockchain News Mexican medical firm embraces blockchain for covid test certificates October 18, 2021 MDS Mexico will use blockchain technology to verify the authenticity of its rapid coronavirus test results. About The Author coinmaker See author's posts Post navigation Previous: ‘Big Short’ Investor Michael Burry Not Shorting Bitcoin, Warns ‘Cryptocurrencies Are in a Bubble’Next: Retro NFT packs drive frenzied Top Shot speculation More Stories Blockchain News Luno cuts 20% of staff as crypto layoffs spread across 12 firms in July July 30, 2026 Blockchain News BNY to bring transfer agency records onchain in blockchain push July 29, 2026 Blockchain News Trade.xyz to cover SK Hynix perp liquidation losses tied to price anomaly July 29, 2026